Home / 3,692.96-5,096.40-2,121.56

Finding the Fourth Proportional to 3,692.96, 5,096.40 and 2,121.56

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Solution

The fourth proportional to 3,692.96, 5,096.40 and 2,121.56 is: 2,927.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.96 : 5,096.40 = 2,121.56 : x
  2. Step 2: Convert to fraction form
    3,692.96/5,096.40 = 2,121.56/x
  3. Step 3: Cross multiply
    3,692.96x = 5,096.40 × 2,121.56
  4. Step 4: Simplify right side
    3,692.96x = 10,812,318.38
  5. Step 5: Solve for x
    x = 10,812,318.38/3,692.96
  6. Step 6: Final answer
    x = 2,927.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.